# name : rmd html theme
# key : rmd.html.theme.
# contributor: Shuguang
# expand-env: ((yas-indent-line 'fixed) (yas-wrap-around-region 'nil))
# --
    theme: ${1:$$(yas-choose-value '("default" "cerulean" "journal" "flatly" "darkly" "readable" "spacelab" "united" "cosmo" "lumen" "paper" "sandstone" "simplex" "yeti"))}